“Getting the baby blues is common, but if it lasts more than two weeks, that could be postpartum depression,” ob-gyn Dr. Draion Burch tells Life & Style.

Fiancé Ashton Kutcher is doing everything in his power to help: “He tells her she looks great, and he tries not to leave Mila alone for any length of time,” says an insider. “And he’s there to take Wyatt whenever she’s feeling overwhelmed.”

For more on Mila and Ashton’s first weeks as new parents, pick up this week's issue of Life & Style, on newsstands now.